null

+ 1

 dude

+ 1

 lull

+ 1

 clue

+ 1

 duel

+ 1

 dull

+ 1

 lune

+ 1

 lunk

+ 1

 dune

+ 1

 nude

+ 1

 dunk

+ 1

 kudu

+ 1

 lulu

+ 1

 cuke

+ 1

 cull

+ 1

 cued

+ 1

 nuke

+ 1

 luck

+ 1

 duck

+ 1

 duke

+ 1

 deuce

+ 5

 cluck

+ 5

 nuked

+ 5

 endue

+ 5

 clued

+ 5

 dunce

+ 5

 elude

+ 5

 educe

+ 5

 undue

+ 5

 uncle

+ 5

 duked

+ 5

 clunk

+ 5

 denude

+ 6

 eluded

+ 6

 educed

+ 6

 lulled

+ 6

 lucked

+ 6

 culled

+ 6

 endued

+ 6

 dueled

+ 6

 deduce

+ 6

 delude

+ 6

 cuddle

+ 6

 dunked

+ 6

 dunned

+ 6

 ducked

+ 6

 dulled

+ 6

 ukulele

+ 7

 unceded

+ 7

 clucked

+ 7

 cellule

+ 7

 cuddled

+ 7

 deduced

+ 7

 deluded

+ 7

 denuded

+ 7

 knuckle

+ 7

 clunked

+ 14

 unneeded

+ 8

 knuckled

+ 15